feat: add fnOS packaging, storage workflows and release pipeline

storage/IMediaStorage.cs

@@ -0,0 +1,27 @@
+using dy.net.model.dto;
+
+namespace dy.net.storage
+{
+    public interface IMediaStorage
+    {
+        StorageType StorageType { get; }
+        Task EnsureDirectoryAsync(string path, CancellationToken cancellationToken = default);
+        Task<bool> ExistsAsync(string path, CancellationToken cancellationToken = default);
+        Task<long?> GetLengthAsync(string path, CancellationToken cancellationToken = default);
+        Task WriteAsync(string path, Stream source, long? contentLength = null, string contentType = null, CancellationToken cancellationToken = default);
+        Task<StorageReadResult> OpenReadAsync(string path, long? from = null, long? to = null, CancellationToken cancellationToken = default);
+        Task DeleteAsync(string path, CancellationToken cancellationToken = default);
+    }
+
+    /// <summary>
+    /// Optional capability for providers that expose a canonical path spelling different from
+    /// the logical path requested by the application.
+    /// </summary>
+    public interface ICanonicalMediaStorage
+    {
+        Task<string> CanonicalizePathAsync(
+            string path,
+            bool createParentDirectories = false,
+            CancellationToken cancellationToken = default);
+    }
+}